CA2358604A1 - Methode pour mesurer et ameliorer une caracteristique de la transmission xdsl - Google Patents

Methode pour mesurer et ameliorer une caracteristique de la transmission xdsl Download PDF

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Publication number
CA2358604A1
CA2358604A1 CA002358604A CA2358604A CA2358604A1 CA 2358604 A1 CA2358604 A1 CA 2358604A1 CA 002358604 A CA002358604 A CA 002358604A CA 2358604 A CA2358604 A CA 2358604A CA 2358604 A1 CA2358604 A1 CA 2358604A1
Authority
CA
Canada
Prior art keywords
measuring
transmission characteristic
level
improving
subscriber line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002358604A
Other languages
English (en)
Other versions
CA2358604C (fr
Inventor
Toshiya Shimura
Minoru Sudo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of CA2358604A1 publication Critical patent/CA2358604A1/fr
Application granted granted Critical
Publication of CA2358604C publication Critical patent/CA2358604C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance
    • H04M3/306—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance for frequencies above the voice frequency, e.g. xDSL line qualification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/487—Testing crosstalk effects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/34—Testing for cross-talk

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
CA002358604A 2000-10-11 2001-10-10 Methode pour mesurer et ameliorer une caracteristique de la transmission xdsl Expired - Fee Related CA2358604C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000311045A JP2002118651A (ja) 2000-10-11 2000-10-11 ｘＤＳＬ伝送特性改善方法及びｘＤＳＬ伝送特性測定方式
JP2000-311045 2000-10-11

Publications (2)

Publication Number Publication Date
CA2358604A1 true CA2358604A1 (fr) 2002-04-11
CA2358604C CA2358604C (fr) 2008-03-25

Family

ID=18790883

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002358604A Expired - Fee Related CA2358604C (fr) 2000-10-11 2001-10-10 Methode pour mesurer et ameliorer une caracteristique de la transmission xdsl

Country Status (7)

Country Link
US (1) US7424097B2 (fr)
EP (1) EP1198112A3 (fr)
JP (1) JP2002118651A (fr)
KR (1) KR100721494B1 (fr)
CN (1) CN1350392A (fr)
CA (1) CA2358604C (fr)
TW (1) TW541821B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7103004B2 (en) * 2001-12-19 2006-09-05 Stmicroelectronics, Inc. Method and apparatus for application driven adaptive duplexing of digital subscriber loops
US7126984B2 (en) * 2001-12-19 2006-10-24 Stmicroelectronics, Inc. Near-end crosstalk noise minimization and power reduction for digital subscriber loops
US7106833B2 (en) * 2002-11-19 2006-09-12 Telcordia Technologies, Inc. Automated system and method for management of digital subscriber lines
EP1458115A1 (fr) * 2003-03-10 2004-09-15 Alcatel Atténuateur pour signaux ADSL
CN100484123C (zh) * 2003-09-13 2009-04-29 华为技术有限公司 一种数字用户线接入复用设备和信号传输方法
KR100634263B1 (ko) 2005-07-01 2006-10-13 서울통신기술 주식회사 디지털 통신 시스템의 신호 처리 방법 및 그 장치
US7782931B2 (en) * 2006-10-25 2010-08-24 NetTraffic, Inc. Methods, systems, and computer program products for automatic detection of an incorrect digital subscriber line modem and filter configuration at a customer premises
MX2011007828A (es) * 2009-01-23 2011-10-21 Tyco Safety Prod Canada Ltd Deteccion de la condicion de linea de telecomunicaciones de vigilancia de alarma y calibracion automatica.
CN102308486B (zh) * 2011-07-05 2014-04-02 华为技术有限公司 生成扩展信道的方法和装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615225A (en) 1994-02-09 1997-03-25 Harris Corporation Remote measurement unit containing integrated line measurement and conditioning functionality for performing remotely commanded testing and conditioning of telephone line circuits
JPH09138251A (ja) * 1995-11-15 1997-05-27 Advantest Corp 隣接チャンネル漏洩電力の測定装置及び測定方法
US6229855B1 (en) * 1996-09-03 2001-05-08 Adc Telecommunications, Inc. Adaptive transmitter for digital transmission
US5731706A (en) * 1997-02-18 1998-03-24 Koeman; Henriecus Method for efficient calculation of power sum cross-talk loss
US6014425A (en) 1997-02-26 2000-01-11 Paradyne Corporation Apparatus and method for qualifying telephones and other attached equipment for optimum DSL operation
AU9495498A (en) * 1997-09-19 1999-04-05 Tollgrade Communications, Inc. Telephony testing system
KR100257936B1 (ko) * 1998-01-20 2000-06-01 이계철 아날로그기반의광전송과쌍대동선전송기술을함께이용하는초고속가입자망시스템
US6091713A (en) 1998-04-13 2000-07-18 Telcordia Technologies, Inc. Method and system for estimating the ability of a subscriber loop to support broadband services
US6385297B2 (en) 1998-11-03 2002-05-07 Teradyne, Inc. Method and apparatus for qualifying loops for data services
US6266347B1 (en) * 1998-12-08 2001-07-24 Globespan, Inc. System and method for modifying symbol duration for the efficient transmission of information in a time duplex noise environment
US6349130B1 (en) 1998-12-22 2002-02-19 Lucent Technologies, Inc. Method to pre-qualify copper loops for ADSL service
US6292468B1 (en) * 1998-12-31 2001-09-18 Qwest Communications International Inc. Method for qualifying a loop for DSL service
US6341159B1 (en) * 2000-02-18 2002-01-22 Harris Corporation Extrapolation of location and amplitude of noise sources on telecommunication wireline from ended access point
US6999583B2 (en) * 2000-08-03 2006-02-14 Telcordia Technologies, Inc. Crosstalk identification for spectrum management in broadband telecommunications systems

Also Published As

Publication number Publication date
EP1198112A2 (fr) 2002-04-17
US20020041656A1 (en) 2002-04-11
US7424097B2 (en) 2008-09-09
EP1198112A3 (fr) 2006-03-15
KR100721494B1 (ko) 2007-05-23
JP2002118651A (ja) 2002-04-19
CN1350392A (zh) 2002-05-22
TW541821B (en) 2003-07-11
CA2358604C (fr) 2008-03-25
KR20020028821A (ko) 2002-04-17

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Effective date: 20151013